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Finding the Fourth Proportional to 72,631, 100,236.25 and 44,342.16

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Solution

The fourth proportional to 72,631, 100,236.25 and 44,342.16 is: 61,195.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,631 : 100,236.25 = 44,342.16 : x
  2. Step 2: Convert to fraction form
    72,631/100,236.25 = 44,342.16/x
  3. Step 3: Cross multiply
    72,631x = 100,236.25 × 44,342.16
  4. Step 4: Simplify right side
    72,631x = 4,444,691,835.30
  5. Step 5: Solve for x
    x = 4,444,691,835.30/72,631
  6. Step 6: Final answer
    x = 61,195.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.